Best lakes around Groissiat are found in the surrounding Haut-Bugey region, part of the Ain department in France. This area is known for its natural lakes, offering diverse landscapes and outdoor activities. While Groissiat itself does not contain lakes, the nearby vicinity provides several options for visitors. The region's geography features glacial and mountain lakes nestled within scenic natural environments.
Last updated: July 6, 2026
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Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
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Unfortunately I was unlucky with the weather, but even as I drove past the place looked very nice, lots of grass and a place to swim.
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In addition to its view of Lake Coiselet, the Oliferne peak is distinguished by a strange sculpture which stands in the middle of the ruins, like a guardian watching over a castle.
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Natural jewel, sapphire blue or emerald green waters, nautical activities.
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The area around Groissiat, within the Haut-Bugey region, features a variety of natural lakes. You'll discover glacial lakes like Lake Nantua, known for its dramatic cliffs, and picturesque mountain lakes such as Lake Genin, nestled among pine trees. There are also serene natural lakes like Lac de Sylans, formed by ancient rock collapses, and the tranquil Lake Coiselet.
Lac de Nantua offers a wide range of activities. You can enjoy swimming in supervised areas, sailing, canoeing, paddleboarding, and pedal boating. It's also a popular spot for fishing, particularly for pike, trout, and whitefish. Hiking trails around the lake and up the surrounding cliffs provide breathtaking panoramic views, such as from the View over Lake Nantua highlight.
Lac Genin, often called the 'Little Canada of Haut-Bugey,' is a picturesque mountain lake surrounded by pine trees. It's ideal for families, offering supervised bathing, fishing, hiking, and mountain biking. There are also treetop adventure courses. In winter, it transforms into a wonderland for cross-country skiing, snowshoeing, ice skating, and even ice diving. An inn on its shore provides dining and accommodation.
Swimming is not permitted in Lac de Sylans. However, it is a paradise for pike anglers, with abundant pike, whitefish, carp, and bream. The lake is also highly valued by hikers who can explore its banks in a preserved natural environment. Picnic areas and nearby parking are available for visitors.
Yes, Lac de Sylans has a unique historical connection to the ice trade. You can still see the ruins of old ice factories on its banks, which harvested ice from the lake until 1917. Additionally, Lac de Conflans lies at the foot of the medieval Château de Conflans, adding a historical backdrop to its natural beauty.
The lakes around Groissiat are excellent for various outdoor activities. You can find numerous routes for cycling, running, and mountain biking. For example, there are challenging cycling routes like the 'Source – Lake Genin loop' and 'Kirche in Port – Camping at Lake Nantua loop'. Running enthusiasts can explore trails around Lac Genin, and mountain bikers have options like the 'Lake Nantua loop'. You can find more details on these activities in the Cycling around Groissiat, Running Trails around Groissiat, and MTB Trails around Groissiat guides.
Yes, several lakes offer accessible and easy walking options. Lac de Nantua has a grassy beach and trails around its perimeter. Lac Genin features a discovery trail around the lake and its peat bogs, providing educational insights into the environment. While specific wheelchair-accessible paths are not detailed, the general flat areas around the lake shores are often suitable for easier strolls.
The best time to visit depends on your preferred activities. Summer (June to August) is ideal for swimming, water sports, and hiking, with supervised bathing available at Lac de Nantua and Lac Genin. Spring and autumn offer pleasant temperatures for hiking and enjoying the changing foliage. Winter transforms Lac Genin into a destination for ice skating and snow sports, while Lac de Sylans remains a serene spot for winter walks and fishing.
While the region is generally welcoming to dogs, specific regulations can vary by lake and trail. Lac de Nantua and Lac Genin are classified as Sensitive Natural Areas, which often implies rules to protect wildlife. It's always best to keep dogs on a leash and check local signage for any specific restrictions regarding swimming or trail access to ensure a pleasant visit for everyone and to protect the natural environment.
Yes, there are options for dining and accommodation. Lac Genin has an inn directly on its shore, offering both meals and lodging. Near Lac de Nantua, you'll find various facilities including parking areas and picnic tables, and the town of Nantua itself offers more extensive services. Along Lake Coiselet also has campsites available.
While Groissiat itself is a small commune, public transport options exist to reach the larger towns nearby, such as Nantua and Oyonnax, which serve as gateways to the lakes. From these towns, local bus services or taxis may be available to reach specific lake destinations like Lac de Nantua. However, direct public transport to all lake shores, especially more secluded ones like Lac Genin or Lac de Sylans, might be limited, making a car often the most convenient option for exploring the wider region.
Lac de Nantua is a stunning glacial lake nestled between towering limestone cliffs. Its most striking feature is its water, which shifts in color from sapphire blue on overcast days to emerald green when sunny. This captivating beauty inspired Alexandre Dumas to describe it as 'the pretty little sapphire blue lake, encased like a jewel that nature is afraid of losing.' It is also a classified Sensitive Natural Area, ensuring its preservation.
Visitors particularly appreciate the diverse natural beauty and tranquility of the lakes. Many highlight the stunning scenery, such as the shifting colors of Lake Nantua and the 'Little Canada' ambiance of Lake Genin. The variety of outdoor activities, from water sports and fishing to hiking and winter sports, also receives high praise. The komoot community has shown strong appreciation, with over 110 upvotes and 30 photos shared across these beautiful lake destinations.


Still not found your perfect lake around Groissiat? Check out the guides of these regions to see even more beautiful places.